| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a long period | 305 |
|
| 2 | [prep] a long period | 305 |
|
| 3 | to a long [noun] | 69 |
|
| 4 | to a long [noun sg] | 67 |
|
| 5 | to a [adj] period | 27 |
|
| 6 | to a [adj] period | 24 |
|
| 7 | to [art] long period | 5 |
|
| 8 | to a long period | 5 |
|
| 9 | to a long period | 5 |
|
| 10 | to a long period | 5 |
|
| 11 | to [art] long period | 5 |
|
| 12 | to a long period | 5 |
|
